| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] [vb infin] [adv] [adv] [verb] | 14 |
|
| 2 | could [not/n't] [vb infin] [adv] [adv] [to-vb] | 12 |
|
| 3 | could [not/n't] [vb infin] [adv] [adv] [verb] | 9 |
|
| 4 | could [not/n't] [vb infin] [adv] [adv] [verb] | 9 |
|
| 5 | could not [vb infin] [adv] [adv] [verb] | 8 |
|
| 6 | could n't [vb infin] [adv] [adv] [verb] | 6 |
|
| 7 | could [not/n't] [vb infin] [adv] enough [verb] | 6 |
|
| 8 | could [not/n't] [vb infin] [adv] enough [verb] | 6 |
|
| 9 | could [not/n't] [vb infin] [adv] [Wh adv] [verb] | 5 |
|
